Valve grinder



July 2 8, 1925;

A. B. GULLY VALVE GRINDER Filect'i'em- Patented July 28, 1925.

Anrnn'rr. GULLY, or erasure-an; ooumactnxcu'r.

v VALVE GRINDER.

' Annli t n fil efli b m 19 3 r l i 61 9 12 t whe i y WWW-f Be it known thatJALBERT B; GULLY,.a citizen of the United States, and resident of Strataford, inythe coun y of- Fairfield and State, of Connecticut,; has, invented; certain.

1 mprove en s; no v n li lldfi yqf WhiGhithe following is Q-" P- Q T e pre n v nti r la s n prov v ves gr n n o par cu r y 9 F I Qgr t e va v o n r m us iongine I a A nobjectv of the, invention is, tov provide a, manuallyoperated device of this character, which maybe operated by comparative-- lyfunskilled persons,j inr a manner to etficiently and uniformly grind valves. A further -objeot is toprovide such a device by whichjfeithergofthe well known: types of valves, provided-in one case with diametrically, opposed holes,jand in the other case with a transverse slot, may be ground Without removalor substitutionaofaany parts.

A still further, object is to. enable the grinding to be carried out with the tool in a non-vertical position, when desired; this being desirable where the structure of the engine may prevent the grinding tool being held vertically.

With the above and other objects in view, an embodiment of the invention is shown in the accompanying drawings, and this embodiment will be hereinafter more fully described with reference thereto, and the invention will be finally pointed out in the claims.

In the drawings:

Fig. 1 is an elevation of the complete device, showing the same engaged with one type of valve, the device being shown in one position of operation;

Fig. 2' is a similar View showing the device in another position of operation;

Fig. 3 is a transverse sectional view taken on the line 3-3 of Fig.1; and

Fig. 4 is a fragmentary view showing the device engaged with another type of value.

Similar reference characters indicate corresponding parts throughout the several figures of the drawings.

Referring to the drawings, the embodiment of the invention shown therein, comprises a cylindrical shaft or rod 10, having its upper end rotatably engaged to oscillate the, cylindricalpassage 11. of fixed member '12, e'ziten'ding' laterally at each side of the? rod, andhaving slots 13' and Phcut h sis-"Withi i se s ot the e r Pi o lly m unt d new Screw piv ts l5 n 1 1.6 apair ofsc ssor-actionlevers17 and 18; ,the.

lower. arms of extend Tat each. sidev ofhelf l; ii-" ib' tintiellri rarel l r l i t Q QW'l Ih iDi QiK co tract? hpe itio le the pner ar s ere fbe t o dly m reiiie tln-gr pP d hy.- h n coil spring- 19.- surrounds the rodijust below the member: 1- the lower end being each other andare; shapedso as to beaconcarried-through and fixedin: a hole2O of the rods. While. the. upper 1 end, is: carried 1 beneath and; heldoby. the nutv on; the pivot' screw: 15.

The lowerends of the levers are provided with... grooves 21; and/1 22:,respectively, [and apertures; and 24',and;have secured therea to the ends of a flexible; cord element 25,

whichmay beformed of; raw-hide, leather,

hemp or other: suitable-matelial; The-ends are fastened 1, by passing them through" the apertures and running them beneath a loop disposed in the grooves. The intermediate portion of the cord is passed through a hole 26 drilled transversely through the rod, the two reaches extending from the ends of the hole being wound about the rod in the same direction, the spring 19 being adapted to yieldingly maintain the rod in a position to wind the cord thereabout, and to contract the lower arms of the levers, as indicated in Fig. 1, I

A pair of. bossesor projections 27 and 28 upon the inner sides of the levers hold them in spaced relation-to the rod, sothat they will not engage the spring 19 and the cord co-iledabout the rod.

At its lower end the rod is provided with a slot 29 forming a forked structure, and

adapted to be engaged with the holes 32 10 at an angle, as indicated in dotted lines. in Figs. 1 and 2.

In operation, the blade is engaged with the valve, and the upper handle ends of v the levers 17 and 18 are gripped in the hand of the operator, as shown in Fig. 1. He thereupon brings the handle ends together, with asqueezing motion as shown in Fig. 2, the uncoiling of the cord oscillating the rod 10 in one direction, and tensioning the spring 19'. Upon release of the lever the spring 19 oscillates the rod 10 in the other direction bringing the levers again to their position as shown in Fig. 1. This scissorlike operation is continued, the valve after each grinding operation being preferably turned in its seat slightly, by bodily turning the tool. I

I have illustrated a preferred and satisfactory'embodiment ofthe invention, but it is obvious that changes may be made therein, within the spirit and scope thereof, as defined in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. In a valve grinding implement, an oscillating rod, a valve engaging element at one end of said rod, an integral fixed member journaling the other end of said rod, a pair of leverspivotally mounted on said fixed member at each side of said rod, a spring coiled about said rod having one end connected'thereto and its other end connected to one of the pivots in said fixed member to which said levers are pivoted, and a cord connected at its ends to saidQ-levers and coiled about said rod. 7

2. in a valve grinding implement, an oscillating rod, a valve engaging element at one, end of said rod, means for oscillating said rod comprising a pair of levers pivotal- 1y mounted at. each side of said rod and a spring coiled about said rod having one end connected thereto and its other end connected to one of the pivots in a fixed member to which said levers are pivoted and a flexible cord connected at its ends to said levers and coiled about said rod, and projections on said'levers adapted toengage the rod to space the levers from the cord coiled on the rod. i I Signed at Bridgeport, in the county of Fairfield and State of Connecticut, this 15th day of February A. 11,1923. ALBERT B. GULLY.

Witnesses: i C. M. NEWMAN, LILLIAN M. ALLING. 

